How he fares on his return is still a mystery but if he can get anywhere close to the 28 goals he managed in all competitions last term, then agreeing a new deal will have been well worth it.

But the 24-year-old former Everton and Chelsea striker is not shirking from the challenge that Ibrahimovic will pose to his starting spot.

Exhausted of reading? Click through the gallery above to see nine players who have just one year left on their contracts with the Red Devils, according to Manchester Evening News.

Mourinho has also included Ibrahimovic in the Champions League Squad this season but will return in January.

Ibrahimovic has usually worn No. 9 throughout his career, including at United last season, but Romelu Lukaku claimed that number after arriving in the summer. Lukaku believes the veteran's experience and character will benefit the team.